/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.devtools.treeshaker;

import com.google.common.io.Files;
import com.google.devtools.j2objc.util.ErrorUtil;
import java.io.File;
import java.io.IOException;

/** A tool for creating type information summaries of a Java program. */
public class Summarizer {

  private Summarizer() {}

  public static void main(String[] args) {
    try {
      Options options = Options.parse(args);
      TreeShaker treeShaker = new TreeShaker(options);
      LibraryInfo summary = treeShaker.createLibraryInfo();
      File summaryFile = new File(options.getSummaryOutputFile());
      summaryFile.createNewFile();
      Files.write(summary.toByteArray(), summaryFile);
    } catch (IOException e) {
      ErrorUtil.error(e.getMessage());
    }
  }

}
